Organic Farming

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Browsing Organic Farming by Funder "NACOSTI"

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    Gallium-Induced Perturbation of Zinc Selenide Quantum Dots Electronics
    (wiley publishers, 2017) Ndangili, Peter M.; Masikini, Milua; Feleni, Usisipho; Douman, Samantha; Tovide, Oluwakemi; Williams, Avril; Baker, Priscilla; Iwuoha, Emmanuel I.
    A rare cationic chemistry of GaIII has been used to modulate the optical and electrochemical properties of selenide quantum dots. Three different types of 3-mercaptopropionic acid (3MPA)-capped quantum dots (ZnSe-3MPA, Ga2Se3-3MPA and Ga-doped ZnSe-3MPA) were synthesized in highly basic aqueous media (pH = 12.12) at room temperature. Three-dimensional emission-excitation matrix spectra (3D EEM), as well as, the ultraviolet visible spectroscopic bands of the Ga-doped ZnSe-3MPA were similar to the average values obtained for ZnSe-3MPA and Ga2Se3-3MPA. Electrochemical studies revealed that gallium-induced vacancies caused a significant enhancement in the conductivity of the Ga-doped ZnSe-3MPA compared to the conductivity of a mixture of ZnSe-3MPA and Ga2Se3-3MPA.
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    Manganese exacerbated chronic khat-induced neurological deficits, inflammation and organ toxicity in a mouse model
    (Springer, 2021-12-01) Chepukosi, Kennedy W.; Nyariki, James N.; Jillani, Ngalla E.; Okanya, Patrick W.; Isaac, Alfred Orina
    This study sought to determine whether chronic exposure to khat (Catha Edulis, Forsk) increases the vulnerability to the toxic effects of manganese (Mn2+), when co-exposed.Three (3)-week-old forty (40) Swiss albino mice were randomly divided into four groups (n = 10). The various groups received khat and manganese separately or both. The experiment was conducted for 132 days to mimic chronic exposure to khat, with manganese administration in the last twelve days.